Enterprise power distribution network synthesis energy saving method

A distribution network and enterprise technology, applied in the energy industry, AC network to reduce harmonics/ripples, sustainable manufacturing/processing, etc., can solve problems such as power loss

Inactive Publication Date: 2008-07-30
HUNAN UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Insufficient reactive power compensation is the main factor leading to power loss

Method used

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  • Enterprise power distribution network synthesis energy saving method
  • Enterprise power distribution network synthesis energy saving method
  • Enterprise power distribution network synthesis energy saving method

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Embodiment Construction

[0023] As shown in Figure 1, in this embodiment, a high-power hybrid active power filter (HAPF) and a high-voltage static var compensator (SVC) are used on the 10KV side of the enterprise distribution network for harmonic control and reactive power compensation ; Use intelligent var compensator (IVC) and distribution network static var compensator (DSTATCOM) on the 380V side to suppress load imbalance and flicker, and realize dynamic energy saving of low-voltage distribution network. Through the comprehensive analysis of the collected real-time state parameters of the distribution network, several control nodes with the best economic and compensation effects are selected. The information of these nodes should fully reflect the operation of the distribution network. When multi-nodes are in the network mode, the single-machine reactive power compensation system of multiple nodes is controlled by the dynamic programming method to make them work together, and finally realize the gl...

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Abstract

The invention discloses a comprehensive energy conservation method of power enterprise distribution network, which comprises following steps: globally cooperating harmonic treatment and reactive compensation equipments by a scheduling center of the power enterprise distribution network according to a reactive optimization scheduling strategy for achieving minimal network loss; calculating the optimal switching state and the switching capacity of the reactive compensation equipment by an optimal matching injected flow method; and determining the selection of running time, spot and the capacity of the reactive compensation equipment to reduce the line loss and distortion loss to achieve power conservation of the power enterprise distribution network. The invention can promote the energy conservation and the consumption reduction of enterprises, and the invention has the advantages of reduced reactive power flow and heat generation of the circuit, prolonged the service life of the power enterprise distribution network, reduced the work current of the motor, prolonged the service life of the motor, improved the power supply quality and ensured relatively stable voltage. The current can suppress load unbalance and flickering, and the invention can achieve global cooperative optimization energy conservation and control, improve the overall utilization efficiency and achieve global optimization control.

Description

technical field [0001] The invention relates to a comprehensive energy-saving technology for a distribution network, in particular to a comprehensive energy-saving method for an enterprise distribution network. Background technique [0002] Energy conservation and emission reduction, as an important task in my country's "Eleventh Five-Year Plan", is not only an action goal of the government, but also can bring operating income to enterprises, so that urban residents can obtain a better living environment. Energy saving and emission reduction is the only way for human beings to solve environmental problems. Enterprises are the most important electricity consumers in the country. Energy saving and consumption reduction can not only bring economic benefits to the enterprises themselves, but also relieve the pressure on power supply across the country. According to the statistics of the National Electric Power Information Network, the national annual power loss in 2000 reached ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/01H02J3/18
CPCY02E40/30Y02E40/40Y02P80/10
Inventor 罗安彭双剑帅智康赵伟方璐杨晓黄亮亮
Owner HUNAN UNIV
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